2336

File Title Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence
Reference HW 1/2336
Date 17 January 1944
Government Department Government Code and Cypher School
File Accession Date 1993

Description

A file of signals intelligence reports, messages, and correspondence issued by the Government Code and Cypher School and sent by the head ('C') of the Secret Intelligence Service (MI6) to the Prime Minister, Winston Churchill. This file contains a minute from C to the Prime Minister (PM) covering 11 summaries of naval messages, 887, 892, 896, 906, 909, 912, 920, 921, 922, 924, 925 (all not included); C adds a manuscript note that SHARK had been exploitable since the PM's departure.

Document Title Date
i Front Cover 17 January 1944 Download PDF (315 KB)
1 Government Code and Cypher School: Signals Intelligence Passed to the Prime Minister, Messages and Correspondence 17 January 1944 Download PDF (294 KB)
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